microprocessor controlled frequency counter - accurate, fast, user-friendly and practical

accurate, fast, user-friendly and practical Technical specifications: Superlatives simply have to be used when describing this frequency counter, but we will try not to let it get out of hand. We think it is only natural to feel a certain amount of pride, however. Here, at last, is a do-it-yourself frequency meter whose capabilities, features and ease of use are comparable to much more expensive ready-made (professional) equipment. This is a tribute to the Elektor designers who continually burned the midnight oil working on the design. Their advice to anybody who is thinking of building or buying a new frequency counter is to read this article and study the circuit diagram first. The chances are that this will be your next frequency meter. • • • Frequency range: 0.01 Hz...1.2 GHz Period time measure- ment: 10 ns...100 s Pulse time measure- ment: 0.1 kis...100 s Many of our readers regard micropro- cessors as a scourge and something that has no place in a respectable `electro...